Carolina Panthers cornerback Josh Norman and at least one team official reportedly taunted star New York Giants wide receiver Odell Beckham Jr. during pregame warm-ups Sunday by swinging baseball bats and making comments toward him, according to Adam Schefter of ESPN.

Jay Glazer of FoxSports.com shared a video on Instagram showing Norman wielding one of the bats:

Ian Rapoport of NFL.com reported Marcus Bell, a Carolina practice-squad player, was carrying a bat and that he and Beckham had to be restrained after a confrontation before the game. Per Rapoport, both the Giants and the NFL league office were trying to determine why Norman was carrying around a bat.

Jason La Canfora of CBS Sports reported the Giants “are convinced” Beckham was “threatened physically and called homophobic slurs” in incidents before the game with Panthers players. La Canfora added that Carolina officials “deny strongly any threats or slurs were made.”

The practice of wielding bats before the game has apparently become a ritual for the Panthers, however. According to Jonathan Jones of the Charlotte Observer, they symbolize the secondary trying to hit home run plays.

Panthers cornerback Bene Benwikere—who brought out a bat when the team played the Atlanta Falcons—confirmed the tradition:

Come on now my boys carry the bat with them as it symbolizes my presence still being with them at the game and the NFL has a problem???

Beckham, however, reportedly was enraged after a Panthers player threatened to “end his day,” per Glazer. The Panthers denied any such threat was made.

Norman and Beckham spent much of the game fighting with one another, including a particularly brutal helmet-to-helmet hit from the wideout. NFL Vice President of Football Communications Michael Signora announced on Monday afternoon that Beckham has been suspended for one game for his role in Sunday’s spectacle.

The Panthers went on to beat the Giants, 38-35, as quarterback Cam Newton led his team to a game-winning field goal as time expired after New York overcame a 35-7 deficit in the second half.